Preparation, structure and reactivity of aminocarbene complexes of chromium and molybdenum derived from primary amines

Autor:	Jacqueline Vaissermann, Cecilio Alvarez, Francisco Delgado, H. Rudler, Michele Rudler, Rubén A. Toscano, A.R. Arevalo, Jean-Claude Daran, P. Dubost, A. Parlier, Bernard Denise
Rok vydání:	1991
Předmět:	chemistry.chemical_classification Denticity Stereochemistry Organic Chemistry Imine Alkyne Biochemistry Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound chemistry Materials Chemistry Moiety Molecule Reactivity (chemistry) Physical and Theoretical Chemistry Diphenylacetylene Carbene
Zdroj:	Journal of Organometallic Chemistry. 418:377-393
ISSN:	0022-328X
DOI:	10.1016/0022-328x(91)80223-7
Popis:	The synthesis and reactivity towards diphenylacetylene of a series of aminocarbene complexes of general structure (CO) 5 MC(NHR′)R (M = Cr, R = CH 3 , Ph, R' = cyclohexyl, cyclopropyl, benzyl) are described: they lead by alkyne insertion followed by a 1,4 hydrogen shift, to imine complexes, which, upon hydrolysis, give the corresponding ketones. When R′CH 2 Ph, along with the expected imine, a tetraphenylcyclopentadiene resulting from the coupling of two PhCCPh and of a carbene moiety, is formed; its structure has been determined by an X-ray study. In the case of aminopyridine, bidentate carbene complexes (the structure of which was confirmed by an X-ray study of (CO) 4 CrC (CH 3 )NHNC 5 H 5 ) are formed, and these also react with PhCCPh to give for M = Mo, new pyrrolinones through alkyne/CO insertion followed by a 1,2 hydrogen shift.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7b502c85ed0e5761d634195a41e5c9ff https://doi.org/10.1016/0022-328x(91)80223-7 Zobrazit plný text záznamu